Marathon Introduces New Air Disc Brake Rotors

Marathon's DiscStar air disc brake rotors feature an optimized venting design and maximized heat sink to further enhance thermal resistance properties.

by SBF Staff

January 26, 2021

Marathon Introduces New Air Disc Brake Rotors — The new line of DiscStar air disc brake rotors from Marathon Brake Systems are designed for a variety of heavy-duty applications, including on-highway trucks and trailers, motorcoaches, transit buses, and school buses.
Photo courtesy Marathon Brake Systems

1 min to read

Marathon Brake Systems has developed a complete line of DiscStar air disc brake rotors for a variety of heavy-duty applications, including on-highway trucks and trailers, motorcoaches, transit buses, and school buses.

The DiscStar air disc brake rotors are manufactured to OE thickness specifications to resist warping and cracking issues caused by high temperature applications, according to a news release from the company. The rotors also feature an optimized venting design and maximized heat sink to further enhance thermal resistance properties.

Engineered to ECE R90 European standards, the DiscStar rotors are manufactured in an ISO-certified plant and are geometrically tested for design, metallurgical composition, hardness, and balance. The rotors also undergo a thermal integrity test at high loads. When used in combination with Marathon's DiscStar air disc pads, the rotors can reportedly provide smooth stopping and a longer service life to lower a fleet's maintenance costs.

Topics:Air Disc Brakes Brakes Maintenance

More Maintenance

2026 School Bus Fleet Vendor Directory & Buyer's Guide

Searching for the right equipment, technology, or services for your school transportation program? This industry guide brings together manufacturers and suppliers across the entire school bus market, all in one place. Download it to find the partners who can help move your operation forward.

2026 School Bus Maintenance Survey

What top challenges are school bus maintenance teams facing in 2026? Explore new trends from School Bus Fleet’s annual maintenance survey covering fleet composition and age, fuel types, used vs. new purchasing patterns, technician pay and certifications, and the impact of the driver shortage. Survey sponsor: Dayton Parts.

A purple and white Fleetio graphic with text reading "Fleetio Introduces AI Service Advisor."

Maintenance•by Staff and News Reports•March 13, 2026

Fleetio Launches AI-Powered Maintenance Service Advisor

The company’s new AI tool helps fleet managers approve repairs faster, prioritize maintenance, and reduce shop time across high-volume fleets.

Maintenance•by Amanda Huggett•March 12, 2026

Maintenance Must-Haves: Shop Products We Love

From tire changers and diagnostics to wash systems and brake tech, these maintenance must-haves save time, reduce strain, and keep school bus shops running efficiently.

7 Key Criteria for Choosing a School Bus Fleet Technology Partner

Selecting a fleet technology partner can be complex, especially with evolving operational demands and limited resources. This white paper outlines seven key criteria to help school transportation leaders evaluate options and align technology with their needs. It offers a practical framework to support more informed decision-making.

Graphic of a yellow school bus above the headline “The Real Cost of Downtime,” with icons illustrating overtime costs, frustrated parents and administrators, repair expenses, and route delays, emphasizing the operational and financial impact of communication failures in school transportation fleets.

The Real Cost of Bus Fleet Downtime

When school bus communication systems fail, the consequences extend far beyond equipment repairs. Downtime can increase safety risks, strain dispatch operations, and erode driver confidence. Explore how proactive radio lifecycle management and managed services are reducing disruptions, supporting driver retention, and delivering predictable budgeting for school transportation fleets.